Home / 13,306.84-18,363.09-7,338.12

Finding the Fourth Proportional to 13,306.84, 18,363.09 and 7,338.12

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Solution

The fourth proportional to 13,306.84, 18,363.09 and 7,338.12 is: 10,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.84 : 18,363.09 = 7,338.12 : x
  2. Step 2: Convert to fraction form
    13,306.84/18,363.09 = 7,338.12/x
  3. Step 3: Cross multiply
    13,306.84x = 18,363.09 × 7,338.12
  4. Step 4: Simplify right side
    13,306.84x = 134,750,557.99
  5. Step 5: Solve for x
    x = 134,750,557.99/13,306.84
  6. Step 6: Final answer
    x = 10,126.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.